Abstract: In the era of big data,with the rapid development of information technology and cloud computing,some changes are taking place on geological data and archives' data processing and services,both geological data and archive management are facing the challenges and changes.Combined with present condition and development trending of current file Informatization,it discusses the construction of digital archives and its knowledge serves system based on the big data,proposes to build the new idea and mechanisms of big data-large files-big services of wisdom archives in this paper.